* Migrate to LevelDbVersionKey
* Migrate to LevelDbMutationKey
* Migrate to LevelDbDocumentMutationKey
* Migrate to LevelDbMutationQueueKey
* Migrate to LevelDbTargetGlobalKey
* Migrate to LevelDbTargetKey
* Migrate to LevelDbQueryTargetKey
* Migrate to LevelDbTargetDocumentKey
* Migrate to LevelDbDocumentTargetKey
* Migrate to LevelDbRemoteDocumentKey
Also:
- Remove FSTLevelDBKey and tests
- Remove StringView and tests
* Step one of benchmarking
* Benchmark writing to leveldb
* Comment out and style
* More comments
* Fix warnings
* Someday I will lint as good as computer
* Some light commenting and static-ing
* It seems to be working?
* Remove unused test file
* Drop commented-out deps
* Revert string quoting in pbxproj file
* Drop reference to deleted file
* Move podspec, fix import
* Lots of C++ style changes
* Style
* Drop whitespace